package api;

/**
 * @Author admin
 * @Date 2019/3/27 8:13
 */
public class T1 {
    public static void main(String[] args) {
        String s1="";
        String s2=new String("java");
        char[] c={'q','w','e','r'};
        String s3=new String(c);


    }
}
